Semimetallic fiber sheet.



L. L- RYAN. SEMIMETALLIC FIBER SHEET.

, APPLICATION FILED JULY 29, I916. 1,215,@6%. Patented Feb. 6,1917.

WITNESS mom/5y i mem er.-

a a w: w i w LOUIS L. RYAN, OF BBIDGEPQBT, CONNECTICUT, ASSIGNOB TO THE ROYAL EQUIPMENT COMPANY, OF BRIDGEPOBT, CONNECTICUT, A CORPORATION OF CONNECTICUT.

sEMIMn'rALLIcf FIBER snnn'r.

Specification oi Letters Patent.

Patented Feb. e, rear.

Application flled'iluly 29, 1916. Serial ,No. 111,966.

To all euhom it may concern:

Be it known that I, Louis L. RYAN, a citizen of the, United States, residing at Bridgeport, county of Fairfield, State of Connecticut, have invented an Improvement in Semimetallic Fiber Sheets, of which the following is a specification. v

, This invention relates generally to packing, and has for its principal object the provision of a semi-metallic or partly metallic fibrous sheet adapted for various uses, more particularly that of use between the-flanges in so-called flange connections in all kinds of engines and pipings, siich as locomotives, automobileand aeroplane engines, and between the various sections inpiping for water,

' gas, steam and ammonia and other alkaline liquids. The more important features of a .metallic fibrous packing embodying my invention, are its'toughness, which enables it to resist a tendency to blow out and to with stand compressive and tensile strains generally; its resilient consistency in spite of the large proportion of metal in its composition, which especially adaptsit for use between unpolished or uneven surfaces, such. as between roughly finished flange connections, and its property or ,characteristic of being unaflected by the action of alkalis; In brief, my present invention provides a semi-metallic material, in sheet form, adapted to be cut to smaller sizes in any required 'form, which shall possess the several advantages without the disadvantages of both wholly metallic and wholly non-metallic material inthe uses indicated and in various analogous uses.

With these and other objects in view, I

I have devised the novel semi-metallic fiber sheet which I will now describe, referring to the accompanyingdrawing forming a part of this specification, in wh1ch-- Figure 1 is a'perspective view of a sheet of my novel material formed by securing a. plurality of and Fig. 2 is a perspective view of a single sheet of my novel semi-metallicmaterial.

The word :semi-metallic as used in this specification implies that the sheet is partlyw metallic and partly non-metallic, 1t bemg understood of course that the metallic and the non-metallic ingredients may be used in varyingproport-ions.

novel fiber sheet consists of a mixture relatively thin sheets together,

ding sheets or strips of any suitable metal or all oy. For the filler any suitable inert material may be used, as barytes or kieselguhr; Any suitable, coloring matter may of course be added to impart to the mixture and to the completed color.

' The-above sheets any required ingredients Two in the following proportions, varying the quantity of each ingredient to suit special requirements of use, viz :-Fifty to seventy-five parts, by weight, of fiber, ten to thirty parts of rubber or other gum, ten to thirty parts of shredded metal, and five to fifteen parts of filler.. These ingredients are thoroughly mingled together in a suitable'mixer and at the required temperature, and the mass is rolled into sheets of the desired thickness.

When relatively thick sheets are required, I preferably build them up from a plurality 'of relatively thin sheets secured together by strength of a compound sheet will be increased by laying the individual sheets with the grain of the sheets crossing each ,other.

My novel sheets are sufliciently flexible and yielding for general use for packing purposes. and are. moreover alkali proof as well as'waterproof.

Having thus described my invention, I claim a 1. A sheet of'the character described comprising fiber, a gum, shredded metal and a ffiller, mixed together and rolled into sheet orm:

2. semi-metallic sheet of the character described comprising asbestos fiber, rubber, shredded metal and a filler, mixed together and rolled into sheet form.

3. A sheet of the character described comprising asbestos and cotton fiber, a gum,

shredded metal and a filler, mixed together and rolled into sheet form.

4. A sheet of the character described comprising a plurality of individual sheets,each consisting of fiber, a gum, shredded metal and a filler, mixed together and rolled into sheet form, said individual sheets being cemented together.

5. A sheet of the character described comprising a plurality of individual sheets, each consisting of fiber, a gum, shredded metal and a filler, mixed together and rolled into 7. A sheet of the character described adapted for use in making packings comprising asbestos fiber, rubber, shredded metal and a filler.

8. A-sheet of the character described comprising a plurality of relatively thin sheets superposed and bound together by a suitable cement, each of said thin sheets being composed of fiber, a gum, shredded'metal and a filler, mixed together and rolled into sheet form. 4 V

9. A sheet ofthe character described com prising a plurality of relatively thin sheets superposed and bound together by a suitable cement, each of said thinner sheets beingi composed of fiber, a gum, shredded metal and a filler, the metal shreds in each sheet being disposed in the same general direction and each of the super osed sheets being laid with the grain thereo transverse of the grain of the sheet or sheets adjacent thereto. In testimony whereof I afiix my signature.

LOUIS RYAN. 

